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#1
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I am livign in an apartment, so I cant transmit (no towers and what
not) so I am looking for what would suit my needs best for HF and shortwave recption in general I have googled a bit and havent found much in the way of easy to build or easy to obtain parts to build antennas any help would be really appreciated cheers |
#2
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On 2005-07-18 20:38:50 -0400, squeege boy said:
I am livign in an apartment, so I cant transmit (no towers and what not) so I am looking for what would suit my needs best for HF and shortwave recption in general I have googled a bit and havent found much in the way of easy to build or easy to obtain parts to build antennas any help would be really appreciated cheers You sure you googled? http://www.google.com/search?hl=en&q... oogle+Search -- PCs, like air-conditioners, are useless when you open Windows. |
#3
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![]() I am livign in an apartment, so I cant transmit (no towers and what not) so I am looking for what would suit my needs best for HF and shortwave recption in general I have googled a bit and havent found much in the way of easy to build or easy to obtain parts to build antennas any help would be really appreciated cheers ------------------------------------------------------------------------- A metal slinky with a MLB on the end and feed your radio with coax. Use inside or out. Collapses down to a very small package when not using and works amazingly well. Use it vertically or horizontally. About the most simple and most effective HF ant. you could use for apartement life. Dont waste your money on an active antenna, they are notorious for picking up all sorts of electrical noise, sometimes to the point of the radio being unlistenable. J |
#4
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what is a MLB
On Tue, 19 Jul 2005 21:48:31 GMT, "Jeff" wrote: I am livign in an apartment, so I cant transmit (no towers and what not) so I am looking for what would suit my needs best for HF and shortwave recption in general I have googled a bit and havent found much in the way of easy to build or easy to obtain parts to build antennas any help would be really appreciated cheers ------------------------------------------------------------------------- A metal slinky with a MLB on the end and feed your radio with coax. Use inside or out. Collapses down to a very small package when not using and works amazingly well. Use it vertically or horizontally. About the most simple and most effective HF ant. you could use for apartement life. Dont waste your money on an active antenna, they are notorious for picking up all sorts of electrical noise, sometimes to the point of the radio being unlistenable. J |
#5
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![]() squeege boy wrote: what is a MLB Magnetic Longwire Balun... dxAce Michigan USA On Tue, 19 Jul 2005 21:48:31 GMT, "Jeff" wrote: I am livign in an apartment, so I cant transmit (no towers and what not) so I am looking for what would suit my needs best for HF and shortwave recption in general I have googled a bit and havent found much in the way of easy to build or easy to obtain parts to build antennas any help would be really appreciated cheers ------------------------------------------------------------------------- A metal slinky with a MLB on the end and feed your radio with coax. Use inside or out. Collapses down to a very small package when not using and works amazingly well. Use it vertically or horizontally. About the most simple and most effective HF ant. you could use for apartement life. Dont waste your money on an active antenna, they are notorious for picking up all sorts of electrical noise, sometimes to the point of the radio being unlistenable. J |
#6
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![]() "squeege boy" wrote in message ... what is a MLB ---------------------------------------------------------------------------- It stands for Magnetic Longwire Balun. Its really not a balun , rather it is more of a transformer to match the impedance of the antenna to that of the radio......... roughly 50-60ohms. Its usually a torroidal magnet with 2 windings, a primary and a secondary. They work very well for their intended purposes. They are 35-45$ but are worth it IMO. Do a google search for them and read all about them. J |
#7
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screw $45-$60 for a MLB! you can wind it yourself for $5. the info is
out there. i am sure that someone here would help. CW has it on his site, maybe he will check in with the address. |
#8
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Jeff wrote:
I am livign in an apartment, so I cant transmit (no towers and what not) so I am looking for what would suit my needs best for HF and shortwave recption in general I have googled a bit and havent found much in the way of easy to build or easy to obtain parts to build antennas any help would be really appreciated cheers ------------------------------------------------------------------------- A metal slinky with a MLB on the end and feed your radio with coax. Use inside or out. Collapses down to a very small package when not using and works amazingly well. Use it vertically or horizontally. About the most simple and most effective HF ant. you could use for apartement life. Dont waste your money on an active antenna, they are notorious for picking up all sorts of electrical noise, sometimes to the point of the radio being unlistenable. J I have done that and my SLINKY (vertical) drops off severely on wavelength shorter than 40M...Study of SLINKY antenna resources indicate it is resonant around 7.2 Mhz Yodar |
#9
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Jeff wrote:
I am livign in an apartment, so I cant transmit (no towers and what not) so I am looking for what would suit my needs best for HF and shortwave recption in general I have googled a bit and havent found much in the way of easy to build or easy to obtain parts to build antennas any help would be really appreciated cheers ------------------------------------------------------------------------- A metal slinky with a MLB on the end and feed your radio with coax. Use inside or out. Collapses down to a very small package when not using and works amazingly well. Use it vertically or horizontally. About the most simple and most effective HF ant. you could use for apartement life. Dont waste your money on an active antenna, they are notorious for picking up all sorts of electrical noise, sometimes to the point of the radio being unlistenable. J I have done that and my SLINKY (vertical) drops off severely on wavelength shorter than 40M...Study of SLINKY antenna resources indicate it is resonant around 7.2 Mhz Yodar |
#10
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See:
http://www.hard-core-dx.com/nordicdx/antenna/feed/feed1.html and http://www.webex.net/~skywaves/ANTENNA/antsys.htm#4:1%20Balun and http://members.aol.com/WA1ION/nrants.pdf the last one uses a MiniCircuits 9:1 tranformer that caosts about ~$5. It has been several years since I bought one. John Doty is very correct about the advantage of "TV" mathcing cores over the more common 1" feritte cores. Pluse the TV cores are cheap and still fairly pentifull. Terry |
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